Hello NeXT Community: I scanned in the Digital Ears Manual in for everyone to check out . It is a very cool box that allows you to hook up your stereo or a microphone to your NeXT and play record and edit CD quality music. I know David Crosby of CSNY once used Digital Ears with a NeXT Cube ! I have one for sale on Ebay if anyone is interested , it works with a lot of the sound software in our archive like Soundworks and Monsterscope!